The present disclosure relates generally to antibody-drug conjugates comprising pyrrolo[2, 1-c][1, 4]benzodiazepine (PBD) drug moieties. The present disclosure also relates to methods of using these conjugates, e.g., as therapeutics and/or diagnostics.本發明大體上係關於抗體-藥物共軛物,其包含吡咯并[2,1-c][1,4]苯并二氮呯(PBD)藥物部分。本發明亦係關於使用此等共軛物例如作為治療及/或診斷之方法。